The diagnosis and modification of mistakes in cad data is studied , the method is presented and a real example is given . development environments of vm systems are compared and some suggestions are given . in the end of the paper , a vm software for smt is developed which shows that all the techniques mentioned above can work correctly , so they can be used as reference on the research of vm technology for other industries 本文深入地研究了vm中存在的問題,對vm系統(tǒng)中必須解決的八個關(guān)鍵技術(shù)進行了研究,并給出了相應(yīng)的解決方案:對于無縫連接提出了新的定義,并制訂了vm表貼子系統(tǒng)的格式;研究了pcb版圖的恢復問題;完成了器件庫的建立工作;探討了vm對cad數(shù)據(jù)進行差錯、驗證和修改,并針對實例給出了一個對應(yīng)的解決方法;對開發(fā)環(huán)境作了比較研究,提出了一種vm系統(tǒng)開發(fā)環(huán)境,即以vc + +和opengl為核心的建立方法;開發(fā)了vm表貼子系統(tǒng),驗證了幾個關(guān)鍵技術(shù)。
器件: device; parts of an apparatu ...庫: warehouse; storehouse邏輯門元器件庫: logic gates器件: device; parts of an apparatus or appliance; component 電子器件 electronic device備件庫: spare parts store控件庫: control library零件庫: unit store軟件庫: debian contrib; dsl; software library散件庫: spare parts warehouse元件庫: component bars組件庫: cg component gallery; component gallery備件庫儲備: parts depot stock備件庫存: parts inventory備件庫職責: responsibilities for storehouses of spare parts標準件庫: standard part library成型鑲件庫: work piece library沖壓件庫: stamping shop公用軟件庫: public software library基本軟件庫: basic software library; library basic software可視元件庫: vci visual component library散件庫辦公: office of spare parts warehouse圖形軟件庫: graphics software library系統(tǒng)軟件庫: system software library線性元件庫: protel dos schematic linear.lib虛擬文件庫: vfs virtual file storage; virtual file storage